thepug18 thepug18

20-05-2021
Mathematics

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A balloon has a circumference of 11 cm. Approximate the surface area of the balloon to the nearest tenth.

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ccyt123 ccyt123

20-05-2021

Answer:

1520.5 cm²

Step-by-step explanation:

Surface area of a sphere =

A = 4πr²

= 4 x π x (11)²

= 1520.530844

= 1520.5 cm²

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